#8145: left shift of negative value bugs in libavcodec/aptx.c
-------------------------------------+-------------------------------------
Reporter: Suhwan | Type: defect
Status: new | Priority: important
Component: | Version: git-
undetermined | master
Keywords: ubsan | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Summary of the bug:
There're 6 left shift of negative value bugs and a left shift of large
number bug in libavcodec/aptx.c
{{{
libavcodec/aptx.c:497:38: runtime error: left shift of 622133197 by 23
places cannot be represented in type 'int32_t' (aka 'int')
libavcodec/aptx.c:767:90: runtime error: left shift of negative value -21
libavcodec/aptx.c:762:38: runtime error: left shift of negative value
-81503
libavcodec/aptx.c:804:52: runtime error: left shift of negative value -1
libavcodec/aptx.c:833:48: runtime error: left shift of negative value
-24576
libavcodec/aptx.c:483:72: runtime error: left shift of 251900672 by 4
places cannot be represented in type 'int32_t' (aka 'int')
libavcodec/aptx.c:495:12: runtime error: left shift of negative value
-10715331219032
}}}
How to reproduce:
{{{
% ./ffmpeg_g -y -i Choral.mpc -map 0 -vframes 38 -aframes 109
output/tmp.aptx
ffmpeg version N-94887-ge55018ee11 (git master)
built on ... ubuntu 18.04 with clang-6 and UBSAN option.
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/8145>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
_______________________________________________
FFmpeg-trac mailing list
FFmpeg-trac@avcodec.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-trac
To unsubscribe, visit link above, or email
ffmpeg-trac-requ...@ffmpeg.org with subject "unsubscribe".
